Binary addition of interpolated strings mangles the string #55461
Description
Version Used:
.NET 6.0.100-rc.1.21405.1 (6.0.100-rc.1.21403.66 works fine)
Steps to Reproduce:
Test code:
using System;
class App {
public static void Main (string[] args)
{
var t = new T ();
Console.WriteLine (t.A ());
Console.WriteLine ();
Console.WriteLine (t.B ());
}
}
class T {
public float R0C0 = 1;
public float R1C0 = 2;
public float R0C1 = 3;
public float R1C1 = 4;
public string A ()
{
return
$"({R0C0}, {R0C1})\n" +
$"({R1C0}, {R1C1})";
}
public string B ()
{
return
@$"({R0C0}, {R0C1})
({R1C0}, {R1C1})";
}
}csproj:
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<OutputType>Exe</OutputType>
<TargetFramework>net6.0</TargetFramework>
<LangVersion>latest</LangVersion>
</PropertyGroup>
</Project>Save & run with dotnet run
Expected Behavior:
Output should be:
(1, 3)
(2, 4)
(1, 3)
(2, 4)
The first interpolated string is badly mangled.
Actual Behavior:
)
3, 1()4, 2(
(1, 3)
(2, 4)
This is a regression in this range: 3a06c12...38582c4
From the PR description, this seems like a likely culprit: #55059